Block users from exporting queries and tables

The short, over simplified answer is no. That's the nature of Access. It is inherently not secure. While you can push it towards a greater relative degree of security with some of the techniques you mention, there is simply no way to get to 100% secure.

One of the more comprehensive sources on Access security I am aware of is this one, Isladogs on Access -- Access Security You will glean some useful information relating to your efforts.

If you are really concerned about your users misusing the data, perhaps you could approach management to discuss why you don't trust other users in your organization and what options are available to deal with that problem on a management level.

Also, if the data really must be protected 100% from unauthorized access -- even by colleagues who otherwise use that same data via Access -- you might need to migrate the data to a more secure platform such as SQL Server.

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